util.concurrent Synchronizer Framework

There is a lot of stuff on Doug's page so it is relatively easy to miss something. I did and only by chance came across of thispaper. In 6 terse pages (a few more are dedicated to performance measurements) it covers the design of the AbstractQueuedSynchronizer class on which many implementations depend in the framework. Highly recommended.

non-blocking util.concurrent

I used to think that Doug Lea was the only Java concurrency god out there and that his library would stay the ultimate achievement. I know that the second Java concurrency bible was a joint venture but even after reading it cover-to-cover four times I see it as a significantly updated revision of the original Doug's bible. After all he authored the library, others mostly extended the java docs :)

I stumbled upon a small non-blocking contender. It's limited but interesting because it promotes the non-blocking (i.e. CAS-based) approach. The developer's credentials are stunning although the code itself looks like a mongrel between Java and C. Anyway let's see, we might be witnessing a nascent branch of util.concurrent in Java 7+